body,dl,dd,ul,ol,h1,h2,h3,h4,h5,h6,p,form{margin:0}
body,button,input,select,textarea{font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Helvetica,
    Segoe UI, Arial, Roboto, 'PingFang SC', 'miui', 'Hiragino Sans GB', 'Microsoft Yahei',
    sans-serif;}
h1,h2,h3,h4,h5,h6{font-size:100%}
em,b{font-style:normal}
a{text-decoration:none}
a:hover{text-decoration:underline}
img{border:0}
button,input,select,textarea{font-size:100%;outline:none}
table{border-collapse:collapse;border-spacing:0}
td,th,ul,ol{padding:0;}